On Wednesday the 15th of May bol. com will host a meetup about migrating from on-prem to the Google Cloud Platform (GCP). After dinner is served, René Feiner, director of engineering at MessageBird will kick off the evening and talk about how and why they moved from their datacenter to GCP.
Meetup: René Feiner (MessageBird) & Maarten Dirkse (bol.com) - Migrating to the cloudIn this episode we talk about GO. Go is not a language that is used the most at bol. com.
From zero to PRO: Using GO @ bol.comKotlin was first used by our teams a couple of years ago. It had an interesting start that shows how we adopt technology in general. In different feature teams a group of software engineers explored their own use cases for Kotlin.
Our Kotlin adoption journey"Welcome to the bol. com Tech Podcast. In this podcast we share our experience with you to learn and entertain.
Introduction to our upcoming bol.com Techlab podcast episodesTL;DR We share our experience on how we built a conversational bot with Finite State Machines. It turned out to have its own shortcomings so we built a (Domain-Specific Language) DSL to design our flows and called it “Sushi”. Sushi is a more flexible and straight-forward tool to build complicated flows.
Sushi: A DSL for Conversational Flow Design“It didn’t look like a big issue at that moment”. Everybody in the room listened to what the Engineer on Duty (EoD) had to tell about the first moments what, later on, turned out to be a partly outage of the webshop in peak season. It’s Monday morning 10.
How we deal with the unexpectedWith a growing microservice landscape, the importance of aggregation layers is also increasing. For some of these aggregation services we are trying Facebook’s GraphQL, with two of them now running on our production environment. We've found that one of the drawbacks in using GraphQL is maintenance on both domain models and GraphQL queries.
A developer friendly GraphQL clientTL;DR: this article discusses in detail my presentation at Spaces Summit 2018. I talked about the need to stop smashing our keyboards and "blindly" focus on "high-speed", and start thinking about what we are doing, why and how we are doing it. By "zooming out and thinking" we take architecture and design into consideration.
Stop Smashing your Keyboard! Zoom out! Think!In many systems at bol. com the response speed of our systems is very important. This blog is about the data structures and algorithms we used to make a specific analysis step a lot faster: Finding the longest matching string prefix.
Finding the longest matching string prefix ... fastThe biggest e-commerce company in the Netherlands and Belgium, bol. com, set out on a 4 year journey to rethink and rebuild their entire ETL (Extract, Transform, Load) pipeline, that has been cooking up the data used by its search...
Using Elasticsearch as the Primary Data Store